This is a note to let you know that I've just added the patch titled
usbip: keep usbip_device sockfd state in sync with tcp_socket
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: usbip-keep-usbip_device-sockfd-state-in-sync-with-tcp_socket.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 009f41aed4b3e11e6dc1e3c07377a10c20f1a5ed Mon Sep 17 00:00:00 2001
From: Shuah Khan shuahkh@osg.samsung.com Date: Fri, 26 Jan 2018 11:56:50 -0700 Subject: usbip: keep usbip_device sockfd state in sync with tcp_socket
From: Shuah Khan shuahkh@osg.samsung.com
commit 009f41aed4b3e11e6dc1e3c07377a10c20f1a5ed upstream.
Keep usbip_device sockfd state in sync with tcp_socket. When tcp_socket is reset to null, reset sockfd to -1 to keep it in sync.
Signed-off-by: Shuah Khan shuahkh@osg.samsung.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/usbip/stub_dev.c | 3 +++ drivers/usb/usbip/vhci_hcd.c | 2 ++ 2 files changed, 5 insertions(+)
--- a/drivers/usb/usbip/stub_dev.c +++ b/drivers/usb/usbip/stub_dev.c @@ -87,6 +87,7 @@ static ssize_t store_sockfd(struct devic goto err;
sdev->ud.tcp_socket = socket; + sdev->ud.sockfd = sockfd;
spin_unlock_irq(&sdev->ud.lock);
@@ -186,6 +187,7 @@ static void stub_shutdown_connection(str if (ud->tcp_socket) { sockfd_put(ud->tcp_socket); ud->tcp_socket = NULL; + ud->sockfd = -1; }
/* 3. free used data */ @@ -280,6 +282,7 @@ static struct stub_device *stub_device_a sdev->ud.status = SDEV_ST_AVAILABLE; spin_lock_init(&sdev->ud.lock); sdev->ud.tcp_socket = NULL; + sdev->ud.sockfd = -1;
INIT_LIST_HEAD(&sdev->priv_init); INIT_LIST_HEAD(&sdev->priv_tx); --- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -797,6 +797,7 @@ static void vhci_shutdown_connection(str if (vdev->ud.tcp_socket) { sockfd_put(vdev->ud.tcp_socket); vdev->ud.tcp_socket = NULL; + vdev->ud.sockfd = -1; } pr_info("release socket\n");
@@ -844,6 +845,7 @@ static void vhci_device_reset(struct usb if (ud->tcp_socket) { sockfd_put(ud->tcp_socket); ud->tcp_socket = NULL; + ud->sockfd = -1; } ud->status = VDEV_ST_NULL;
Patches currently in stable-queue which might be from shuahkh@osg.samsung.com are
queue-4.4/usbip-keep-usbip_device-sockfd-state-in-sync-with-tcp_socket.patch